code: def draw(self):
      if hasattr(self._renderer.gc, "ctx"):
          self._renderer.dpi = self.figure.dpi
          self.figure.draw(self._renderer)
      super().draw()
  
file_path: catboost/contrib/python/matplotlib/py3/matplotlib/backends/backend_qtcairo.py
imports: import ctypes
  from .backend_cairo import cairo, FigureCanvasCairo
  from .backend_qt import _BackendQT, FigureCanvasQT
  from .qt_compat import QT_API, QtCore, QtGui
label_desc: Use image node_id 1 for calling the FigureCanvasQTCairo obj's underlying member method code with example usage: obj.draw() without return types